The team aimed a jet of gas at a soap film and observed that bubbles appear only above a threshold gas speed. The literacy test was one type of poll test that was given in some locations. The soap can be put in a spray bottle or placed in a bowl for sponging on. The black person would go to the polls and have to take a literacy test in order to vote. Like with the other tests, News. The pollworkers would ask the black person questions like, “How many bubbles in a bar of soap?” What is a Homemade Pregnancy Test With Soap? The Soap Making Forum. The intimidation and suppression of the Black vote didn't end with Selma. A prospective voter might, for example, have to name all of the county judges in the home state or even say how many bubbles were in a bar of soap. Now researchers have performed experiments and developed a complete theory of the process of soap bubble formation. It has made a big comeback in recent years. Soapy water pregnancy test involves mixing the soapy water with your urine to test whether you might be pregnant. You can easily make soapy water at home, so this is a simple test, and you can do it as many times as you want. Chris Vaeth. Remember, this test is not medically verified and the results are often skewed. Obviously, there was no written answer key; instead, the official giving the test could decide whether the respondent’s answers were good enough. The most famous of those was a so-called literacy test which required the black people - never whites, they were assumed competent to vote by their color - to answer impossible questions like, "How many bubbles in a bar of soap?" Clarence remembers the long, hard journey he took to gain the right to vote. Jan 26 How Many Bubbles Are in a Bar of Soap? A prospective voter might, for example, have to name all of the county judges in the home state or even say how many bubbles were in a bar of soap. This poll test asks voters to correctly guess the number of cotton balls in a jar before they are allowed to vote. That was a common question on 'literacy tests' that kept many African Americans from voting through the 1960s. Dish washing soap is formulated to make lots of bubbles so it works better for the soap test for gas leak. Nobody has ever tried to count them, and even if they had, conditions would change with every bar and every user. A message board community for soap making, candle making and other crafts and do it yourself projects Voters were tested on their reading skills. To make the solution for the soap test for gas leak, simply mix dish detergent with water. guess the number of bubbles in a bar of soap! Some recommend a particular ratio, like three times more pee than soap. Blowing soap bubbles is child’s play, but surprisingly, physicists haven’t worked out the details of the phenomenon. Some sources say to break off a small piece of bar soap, while others say to put in a few squirts of dish soap.